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Summary: The article discusses how estrogens not only drive tumor growth in breast cancer cells with receptors but also play a role in fueling growth in breast cancers without receptors and other types of cancer. This finding suggests that estrogens may have a hidden role in cancers by inhibiting a key immune cell.
Estrogens are known to drive tumor growth in breast cancer cells that carry its receptors, but a new study unexpectedly finds that estrogens play a role in fueling the growth of breast cancers without the receptors, as well as numerous other cancers.